Features:• Uses up to 20 remote stations plus 3 door speakers, 6-wire system • Perfect for residential or small office use • Calls stations individually using the 'selective call' feature, or call all stations at the same time using the 'all call' feature • Answer the door speaker from any station • Master station mounts in a utility room, closet or other out-of-the-way location • Master surface mounts, no rough-in required • Optional chime module or external electronic chime, audio wall plate

Music Distribution• Auxillary program audio input allows distribution of music to all stations • Connect any line level program source to the auxillary input • Use IA-30WH audio wall plate and IR-30K rough-in kit to connected master to auxillary program source • Auxillary program audio mutes during intercom calls and chime operation • Separate program and intercom volume controls